Fedora 16 : set up FreeNX server and connect to Linux machines from Windows through NX session

Here’s an explanation of how to set up FreeNX server on Fedora16.

[root@fc16 ~]# cat /etc/redhat-release Fedora release 16 (Verne) [root@fc16 ~]# uname -ri 3.2.1-3.fc16.i686.PAE i386 # /usr/libexec/nx/nxserver --list NX> 100 NXSERVER - Version 3.2.0-74-SVN OS (GPL, using backend: 3.5.0)

Windows7 ( FreeNX Client ) --- Fedora16 ( FreeNX Server )

[ install FreeNX Server ]

install FreeNX server via yum.

[root@fc16 ~]# yum install -y freenx-server

set up the FreeNX server

[root@fc16 ~]# nxsetup --install --setup-nomachine-key Setting up /etc/nxserver ...done Generating public/private dsa key pair. Your identification has been saved in /etc/nxserver/users.id_dsa. Your public key has been saved in /etc/nxserver/users.id_dsa.pub. The key fingerprint is: The key's randomart image is: Setting up /var/lib/nxserver/db ...done Setting up /var/log/nx/nxserver.log ...done Adding user "nx" to group "utmp" ...done Setting up known_hosts and authorized_keys2 ...done Setting up permissions ...done Setting up cups nxipp backend ...done

edit node.conf

[root@fc16 sessions]# egrep -v ^# /etc/nxserver/node.conf | egrep -v ^$ ENABLE_PASSDB_AUTHENTICATION="0" ENABLE_SSH_AUTHENTICATION="1" ENABLE_CLIPBOARD="both" NX_LOG_LEVEL=4 COMMAND_START_GNOME="/usr/bin/gnome-session --session=gnome-fallback"

In my case , I can’t access to the Fedora with GNOME3 though NX session.
I can use GNOME3 when logging on the Fedora machine locally.
I changed “COMMAND_START_CNOME” option from “gnome-session” to “gnome-session --session=gnome=fallback”  to fallback to classic gnome style from GNOME3 style through NX session.

change COMMAND_START_GNOME option

from

COMMAND_START_GNOME=gnome-session

to

COMMAND_START_GNOME="/usr/bin/gnome-session --session=gnome-fallback"

You could find what kind of options you could specify as the  “--session=” option by checking /usr/share/gnome-session/sessions directory.

# ls /usr/share/gnome-session/sessions/ gdm-fallback.session  gdm-shell.session  gnome-fallback.session  gnome.session

In that case , I can use --session=gdm-fallback or gdm-shell or gnome-fallback or gnome.

start freenx-server

[root@fc16 ~]# systemctl start freenx-server.service [root@fc16 ~]# systemctl status freenx-server.service freenx-server.service - FreeNX Server          Loaded: loaded (/lib/systemd/system/freenx-server.service; disabled)          Active: active (exited) since Sat, 28 Jan 2012 16:59:02 +0900; 6s ago         Process: 4729 ExecStart=/usr/libexec/nx/nxserver --start (code=exited, status=0/SUCCESS)         Process: 4656 ExecStartPre=/usr/libexec/nx/nxserver --cleanup (code=exited, status=1/FAILURE)          CGroup: name=systemd:/system/freenx-server.service

make .Xmodmap for keyboaad mapping settings.

# xmodmap -pke > /home/user/.Xmodmap # chown user.user /home/user/.Xmodmap

edit .Xmodmap to correct the keyboard mappings.

change keycode 123:

from

keycode 123 = XF86AudioRaiseVolume NoSymbol XF86AudioRaiseVolume

to

keycode 123 = backslash underscore

change keycode 133

from

keycode 133 = Super_L NoSymbol Super_L

to

keycode 133 = backslash bar backslash bar

You can check key codes by xev command.


[ NX client ]

Download NX client from http://www.nomachine.com/download.php.

launch NXClient and configure an NX session to access to the Fedora16 notebook like this:



edit the NX client configuration to use Japanese keyboard layout.

open *.nxs file with text editor
In my case , nxs files are stored under C:\Users\username\.nx\config folder.

add keyboard layout ( Fedora16 notebook.nxs )

<option key="Custom keyboard layout" value="jp" />

If your keyboard layout is still wrong even though you edited .Xmodmap file and nxs file ( NX client configuration) correctly , you might also check the keyboard layout of i-Bus settings via NX session.


To start freenx-server when booting the Fedora.

# systemctl enable freenx-server.service ln -s '/lib/systemd/system/freenx-server.service' '/etc/systemd/system/multi-user.target.wants/freenx-server.service'

# /usr/libexec/nx/nxserver --list NX> 100 NXSERVER - Version 3.2.0-74-SVN OS (GPL, using backend: 3.5.0) NX> 127 Sessions list: Server     Display Username        Remote IP       Session ID ------ ------- --------------- --------------- -------------------------------- 127.0.0.1       2000    zzzz 192.168.11.5    zzzzzzzzzzzzzzzzzzzzzzzzz NX> 999 Bye